Steam-superheater.



H. W. JACOBS.-

STEAM SUPERHEATE'R. APPLICATION FILED OOT.Z4,1908.

Paterited Feb. 9, 1909.

7 SHEETS-SHEET 1.

wane/was H. W. JACOBS.

STEAM SUPERHEATER.

APPLICATION FILED 0o1'.24,190a.

Patented Feb. 9, 1909.

N 7 SHEETSSHBET 2. N

H. W. JACOBS.

STEAM SUPERHEATER.

APPLIOATION FILED 00T.24,1908.

Patented Feb. 9,1909.

7 SHEBTSSH'EHT 3; I

W. JACOBS. STEAM SUPBRHEATER.

APPLIOATION TILED O0T.24,1908.

Patented Feb. 9, 1909.

. 7 SHEETS-SHEET 4.

5 mm who; ZEN).

H. W. JACOBS. STEAM SUPERHEATER. APPLICATION FILED 00T.24, 1908.

- Patented F9119, 1909.

H. W. JACOBS. STEAM SUPERHEATER. APPLICATION PILEDo0T.2,4,1908. I

Patented Feb. 9,1909.

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H. W. JACOBS. STEAM SUPERHEATER. APPLIOATION FILED 0OT.24,1908.

Patented Feb. 9, 1909.

7 SHEETSSHEET 7v iii section taken on HENRY W. JACOBS, OF TOJPEKA,KANSAS.

- STEAM-SUPERHIEATEB.

Specification of Letters Patent.

PatentedFenB, 1909.

Application filed October a, 1903. Serial in. 469,435,

To all whom it may concern:

, Be it known that I, Hnnnr W. Moore, of Topeka, the State of Kansas,have invented a certain new and useful Improvement in Steam-Superheaters, and do hereby declare that the following is a full,clear, and exact description thereof. a

My invention relates to steam superheaters and especially tosuper-heaters that are used in railway locomotives.

My object is to provide a super-heater of the above character with asgreat a heating surface as possible for a given space, to so locate theparts that there shall be a very free circulation'of flue gases throughthesuper-heater, thereby rendering the heating of the surfaces of thesuper-heater more efficient and-more rapid, to produce a more thoroughand more rapid mixture of the steam being super-heated, to locate theparts in such a manner oughly accessible so that they may be readilyreached for the purpose of making repairs when necessary and also forthe purpose of cleaning, and such a' manner of wear on the walls of thethat there will be, a minimum super-heater because of the contacttherewith of the fluegases and cinders.

The details of my invention will be described hereinafter in connectionwiththe accompanying drawings, in which Figure 1 is'a fragmental side"elevation of the front portion of a locomotiveeuipped with my suer-heater; Fig. 2 is a' ongitudinal vertical sectionof the same; Fig. 3is a plan view of the interior constructlon'of the super-heater; Fi 4 isa transverse vertical ine4 .4 of Fig. 2 Fig. 5 is a similar .sectiontaken on 5-.5 of Fig. .6 is, an elevational' v ew of 'another mod'cation; and Fig. 7 ,1s a plan viewpartly in section of the same. 7

In the drawings 1 is a cylindrical casing located at the front part of alocomotive and constituting the smoke arch of the'same. The steamsuper-heater 2 which is'located Within this casing, pipe 3-;whichconveys a supply of steam from the steam boiler 4 to the front section'5of the super-heater. The front section 5 comprises an outercylind-sicalcasing 7 and an inner cylindrical casing 8. Thecylindrical casing 8provides a large transverse cylinin the county of Shawnee, and in:

that they shall be thor finally to locate the parts inis, therefore,compelled to pass is connected to the dry steam the body of this sectionof the su ,er-heat'er, the pur ose of which will he ereinafter describeTheh'od of this section .of the sup r w ch l es e en the two cylindricalcasings 7 and 8, is ,cemposedofa pluralityof longilldinfil tubes 9 ofsmall diameter, the ends of which are entirely open in the front and inthe rear of this section of the super-heater,

same. Steamis led into this section of the super-heater from the pipe 3,as alread scribed, whence the steam is led ,aroun various longitudinaltubes 9 therein. order to cause aniefiicient circulation of the steamthrough this section of-fthe superheater, I rovide it with a pair ofspirallydi rected bae plates 10, .whichloextend from the. top thereof,and .one of which is situated within-the other, as shown in Fig. 4. Asan, additional baflle plate, vI'locate a partition therein extendingupwardly from the central cylindrical casing 8 -to the outer casing 7,-The pipe 11 is'directed rearwardly from this section of the super-heaterendis connected ,to the upper surface of the rear section of thesuper-heater 12. This is constructed with a open both at-t e rearand-the front ofthis section of the super-heater as in thejront section5 of the supereheater. A plurality of horizontally directed bafiieplates. 1A: are located in this section of the-super-heater, Theseextend alternately from opposite sides thereoflending in proximity tothe other sides of the super-hea'te The steam backward and forward-fromone side of this section; of the super-heater to the other around thebaflieplates '14, until itfinallyreaches the outlet ipe 1-6 located atthe bottom of the superlleater. -After leaving this section of thesuperheater, the outlet pipe 16 branchesand is directed downwardly, asshown in Figs. 1 and 3, the branches being connected at their lower endsto'the steam chests of the locomotive.

The exit of the steam through the pipes 22, in to the steam chests may,if desired; be

propriate levers. and cennections for its oper ation. The exhaust steam,asis usualin 19+ comotives, .is permitted to escape into the stack; andto. act this, l-provide the central 0 lindricel casing 8 of the {troutsection :OT. t esuper-heeter 5 with rearwardly directed controlled byathrottle valve 17, having ape so as to provide for the 5;;

free passage of the flue gases, through plurality of ion 'tudin-al tubes13,-which Care connection 18, which is connected .with an upwardlydirected pipe 19 leading to the stack of the locomotive, and with anexhaust nozzle or pipe 20, into which the exhaust steam is injected inan upward direction.

All of the seams in the two sections of the super-heaterdncluding thefire tubes and the connections of the same, with the casings of thesuper-heater are welded together. The welding may be doneautogenously,electrically or otherwise. Thus, with the exception of thesteam connections. the superheaters are made of absolutely integral andsolid constructions.

The com leteoperation of my superheater is as ollows:Steam passes fromthe steam boiler into the dry steam pipe 3 and thence to the frontsection 5 of the steam super-heater. There the steam is brought intointimate contact with the outer sur faces of the longitudinal tubes 9,which are located in staggered relation to one another,

carries with it t so as to effectively'mix the entire body of the steam.The baffle plates 10 then cause the'steam to pass downwardly around theouter bafiie plate to the bottom of this sec tion of the super-heater,and thence downwardly from the other side of the superhcater around theoutside of the inner baflle plate and then finally downwardly aroundheater through the pipe 16, controlled by the throttle valve 17, intothe steam chests of the locomotive. The exhaust steam after leaving thecylinders of the locomotive escapes in an upward direction into thelower end of the exhaust nozzle 20. The steam exhaust assing up throughthis pipe lie flue gases which are drawn in a rearward direction throu hthe cylindrical casing 8 into the pipe 19 Eaading to the stack of thelocomotive. The flue ases, pass from the fire-tubes 22 into the ongitudinal tubes 13 of the rear section of the super-heater, though partlyaround the outside of the super-heater casing, then around the exhaustnozzle 20 and through the tubes 9 of the front section of the super;-heater 5, though partly also aroundthis section of'the su er-heater,.and finally into the front .end 0 ,the cylindrical casing 8. When it isdesired to clean or repair the front section 5 of the su er-heater, itis necessary merely. to detac the removable front end of the locomotivecasing, thus rendering the front section 5 of the superpossible to cleant e fire-tubes 22, inasmuch as the tubes 12 of the rear section a of thesu erheater are in alinement therewith. It will be seen that by thisarrangement an extremely large heating surface is provided in thesuper-heater inasmuch as each of the sections, of the super-heater isprovided with innumerable longitudinal pipes located in staggeredrelation to one another, so that every .portion of the body of steambeing super-heated is compelled to come in contact continually with theheating surfaces, and for the further reason that the outer casings ofthe super-heater sections are also heated by contact with the fluegases. At the same time there is a very freecirculation of the fluegases'through ,the super-heater because' of the location 0 all of thepipes in the same direction and in positions 1n which the? constitutepractica ly continuations of efac 1 other. Furthermore, in the case ofthe rear section of the super-heater the tubes thereof are located indirect alinement with the fire-tubes of the boiler. Again, all of theparts of the super-heater are very readily accessible and are alsosolocated that they can be readil removed, if found desirable. Finally,the lbcation of'the .v'arious tubes through which the flue ases arecaused to of the construction and in the adaptation of my super-heaterto, any particular locomotive. The steam pipe connections are especiallycapable of many. different arrangements to adapt my device to the needsof any particular locomotive or engine. Among other changes that mightbe made, are the connection of the rear section of the superheater 12with the steam chests. of the low pressure cylinders and the connectionof the front section thereof with the steam chests of the high pressurecylinders, it not beingnecessary to super-heat the steam to as high atemperature when used in low pressure cylinders as in the case where itis used in high pressure cylinders.

In Figs. 8 and}? I I modification of my invention in which the front andrear sections of the super-heaters are connected respectively to thehigh and .lowpressure cylinders of the locomotive, as

above described. The modification shown in these figures differs fromthe modification of my invention already described, in that have shownanother the front section of the super-heater 7 is. provided with a pairof downwz-u'dly directed outlet pipes 23- leading from the rear facethereof tothe valve chambers of the high pressure cylinders 24, locatedon eitherside of the locomotive. The exhaust steam is led from thesecylinders by means of a pair of pipes 2-5- to the rear section of thesuperheater 12. Pipes-26' connected to this section of thesupcr-heaterlead. the steam from the latter to: the valve-chambers ofthelow pressure steam cylinders 27, which are alsolocated on either side ofthe locomotive. The steam is allowed to exhaust from these cylindersinto the stack of the locomotive in;

- the manner already described.

While I have described my invention abovein detail, I wish it to beunderstood that I consider my invention. to bea broad one and onecapableof many changes and adaptations. without departing from thespirit thereof.

I claim:

1 In a device of the character described,

the-combination, with aboilerhavingasmoke chamber andifiretubes openingthereinto, 0t steam. superheating means comprising a plurality ofseparated secticnsprovided with fire tubes in said chamber, the firetubes of said sections being in alinement with each other and. with theiire tubes ofthe boiler, and said chamber having an outlet leadingfromrbetween said sections. 1

2. In a device of the character described, the combination with a boilerhaving asmoke chamber and fire tubes opening thereinto,

of steam superheating' means comprising a plurality of separatedsections provided with staggered the tubes in said chamber, the firetubes of said sections being in alinement with each other and withthefire tubes of the boiler, and said chamber having an outle leadingfrom between said sections.

'3. In a device of the character described, the combinationof a seriesof superheater sections with which furnace gases come in contactsuccessively, and means whereby one of said sections delivers steam to acylinder of a compound. engine andanother section earlier in the seriesreceives the exhaust therefrom and delivers it to another cylinder ofsaid engine.

4. In a device of the character described the combination of a steamboiler, a stack. and fire tube steam superheating means conipris ing twoseparate hollow sections one in front of and'one the rear of the stack,all of the seams in the superheating means, with the e'xception of thesteam connections being welded together, thus making each of thesections an integral structure.

5. In a steam engine the combination of a steam boiler and steamsuper-heating means comprising front and rear sections each of saidsections containing a plurality of fire tubes, a front section being(.(rllhddtfitl to the high pressure cylinders of a steam engine and arear section eing connected with the low pressure cylinders thereof.

61 vIn a device of the character described, 7

the combination of a steam boiler, steam superheating means of the firetube type comprising two separate sections one in front of the other,and a stack located between the sections, the steam exhaust passup:through the stack.

, 'Z. In a device of the character described, the combination of a steamboiler, steam superheating means of the fire tube type coin ris' two socrate sections' a stack l I located between the sections, one of saidsections being provided with a central open-- ing, and means for causingthe products of combustion: to pass through said opening after havingbeen led through the fire tubes of each. section and finally into thestack.

8.. In a device of the character described, the combination of a steamboiler, steam. superheating means of the fire tube type comprising twoseparate sections, one oi. said sections being provided with a centralopens ing, and a stack having an attached pipe front and rear thereofand a conduit directed horizontally and then upwardly intermediate theends of the superheating means and connected to the stack.

11. In a device of the character described, a superheater comprising asubstantially an nular closed drum, a plurality of fire tubes passingthrough the interior of said drum, a

partition in said drum extending from the wall of its central passage toits pcripheral wall, a plurality of bafiies in said drum, each abuttingagainst its peripheral. wall at one end adjacent said partition,extending around the central passage, and terminating adja cent theabutting end of the next one, and inlet and outlet connections forpassing steam through the tortuous passage formed by said partition andbafilcs and the walls of said drum.

12. In a device of the character described,

the combination with a boiler having a smoke chamber for receivingheated gases there from, of superheating means in said, chambercomprising two separate fire tube sec tions with which the heated gasescome in to the portion of said chamber remote from contact successively,one of said sections having a passage therethrough, and means wherebythe heated gases which have passed their point of entry are caused topass back through said opening to an outlet in the wall. of saidchamber.

13. In a device of: the character described, the combination with aboiler having a smoke chamber for receiving heated gases therefrom, ofsuper-heating means in said chamber comprising two separate fire tubesections with which the heated gases come in contact successively, oneof said sections having a passage therethrough, and means whereby theheated gases which have passed to the portion of said chamber remotefrom their point of entry are caused to pass back through said openingto an outlet in the upper wall of said chamber.

14. In a device of the character described, the combination of a boilerhaving a smoke chamber for receiving heated gases therefrom, ofsuperheating means in said chamber comprising two separate fire tubesections with which the heated gases come in con tact successively, oneof said sections having a passage therethrough, and means whereby theheated gases which have passed to the portion of said chamber remotefrom their point of entry are caused .to pass back through said openingto an outlet in the wall of said chamber located between the twosuperheater sections.

15. In a device of the character described, the combination of a boilerhaving a smoke chamber for receiving heated gases there-,1

from, of superheating means in said cham- Yber comprising two separatefire tube sections with which the heated gases come in contactsuccessivel one of said sections having a passage t erethrough, andmeans whereby the heated gases which have passed to the portion of saidchamber remote from their point of entry are caused to pass back throughsaid opening to an outlet in the wall of said chamber, said meanscomprising a pipe connecting at one point with said passage and atanother point with the outlet in the wall of the chamber.

16. In a device of the character described, the combination of a boilerhaving a smoke chamber for receiving heated gases therefrom, ofsuperheating means in said chamber comprising two separate fire tubesections with which the heated gases come in contact successively, oneof said sections having a passage therethrough, and means whereby theheated gases which have passed to the portion of said chamber remotefrom their point of entry are caused to pass back through said openingto an outlet in the wall of said chamber, said means comprising a pipelocated between the superheater sections connecting at one point withsaid passage and at another oint with the outlet in the wall of thecham- In testimony thatI claim the foregoing I have hereunto set myhand.

HENRY JACOBS.

Witnesses:

CLARKE J. MORRISON, W. H. EASTMAN.

